Neal McBurnett scripsit:
> > I wouldn't be too quick to dismiss tidal braking from Phobos. It's
> > awfully close to Mars, and tidal braking is as you say an inverse-cube
> > effect. The formula (kai Wikipedia) is (2GMmr)/R^3, where M and m are
> > the masses, r is the radius of the primary, and
On Wed, Jan 11, 2006 at 11:44:13PM -0500, John Cowan wrote:
> I wouldn't be too quick to dismiss tidal braking from Phobos. It's
> awfully close to Mars, and tidal braking is as you say an inverse-cube
> effect. The formula (kai Wikipedia) is (2GMmr)/R^3, where M and m are
> the masses, r is the
Rob Seaman scripsit:
> Folks have been tossing around the notion of aligning this with daylight
> saving time - but DST in what locality? Does anyone really believe that
> a leap hour would be introduced on different calendar dates worldwide?
> (It seems to me that the one time it is guaranteed N
I referenced this page, but missed the most interesting part of it:
http://www.exo.net/~pauld/physics/tides/tidalevolution.htm
> The height of a tidal bulge on a planet is proportional to the
> inverse cube of the distance between the planet and the object
> causing the tidal bulge. The torque wh
What now, Dr. Moebius? Prepare your minds for a new scale... of physical scientific values, gentlemen.Mark Calabretta takes the lazy man's way out and appeals to facts: Here in a topology-free way is what the axis labels of my graph looklike during th
On Wed 2006/01/11 20:58:25 PDT, "M. Warner Losh" wrote
in a message to: [EMAIL PROTECTED]
and copied to: LEAPSECS@ROM.USNO.NAVY.MIL
>: 60.999... 32.999... 32
>:2006/01/01 00:00:00 2006/01/01 00:00:3333
>:2006/01/01 0
Rob Seaman scripsit:
> I don't have an envelope large enough, but there are various issues
> to consider. The Hurtling Moons of Barsoom are much smaller than our
> own and should have a negligible tidal breaking effect. (See http://
> www.freemars.org/mars/marssys.html, for instance, for their
>
In message: <[EMAIL PROTECTED]>
Mark Calabretta <[EMAIL PROTECTED]> writes:
: On Wed 2006/01/11 10:47:25 -, Michael Deckers wrote
: in a message to: LEAPSECS@ROM.USNO.NAVY.MIL
:
: > At some instant when TAI took a value in the positive leap second between
: > 2006-01-01 + 00 h +
On Wed 2006/01/11 10:47:25 -, Michael Deckers wrote
in a message to: LEAPSECS@ROM.USNO.NAVY.MIL
> At some instant when TAI took a value in the positive leap second between
> 2006-01-01 + 00 h + 00 min + 32 s and 2006-01-01 + 00 h + 00 min + 33 s
> (the exact instant is not clear from [IT
On 2006-01-11, David Malone wrote:
> [A lot of discussion on this list seem to revolve around people
> understanding terms in different ways. In an impractical example
> of that spirit...]
Anyway: excuse me for repeating some basics of classical mechanics;
but I believe it to be neces
I see Steve Allen has already supplied a thorough answer. Interested
individuals might also scrounge through the list archives (http://
rom.usno.navy.mil/archives/leapsecs.html) since the topic has come up
before. In fact, Demetrios Matsakis speculated on solar system wide
timescales even before
On Wed 2006-01-11T09:01:07 -0500, Daniel R. Tobias hath writ:
> If, however, this Martian second is actually defined as a particular
> multiple of the SI second, then the use of leap seconds on Mars would
> ultimately be necessary to account for any future changes in the
> length of the Martian day
On 11 Jan 2006 at 0:08, Tim Shepard wrote:
> If humans spread out to other places besides the earth, an
> earth-centric time scale might begin to seem somewhat quaint.
> Distributing leap second information to a Mars colony seems kind of
> silly.
As I recall, the NASA Mars missions are using Mars
[A lot of discussion on this list seem to revolve around people
understanding terms in different ways. In an impractical example
of that spirit...]
>I do not understand. As a function of TAI, UTC is neither continuous
>nor monotone increasing in the mathematical sense.
To say if TAI is a
On 2006-01-10, Mark Calabretta wrote:
> I can't let this one pass - UTC is continuous and monotonic. In fact,
> ignoring differences in origin, UTC = TAI. Surprised? If so then
> you're confusing a quantity with its representation (though in good
> company in doing so).
I do not unde
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